It was completely legal. And he moved in to stop nazi A-holes and their ethnic cleansing. That and stopping NATO from charging right up to his border.
The Donbass and Crimea broke away after Ukraine fell to a coup. They have as much right to do that as the western Ukes in Kiev did. When you overthrow a government by force, everyone else possesses that same right. Everyone in old Ukraine is not required to join the new nazi dominated junta. So they asked for assistance from their closest potential ally. All very legal under UN rules. See also “Kosovo” and “Libya”.
Actually more or at least AS legal than us invading Syria and breaking off a chunk for our pet separatists.
Like it or not. War is how national borders change. Calling it illegal is a useless objection. You are correct.
Not to mention if Biden is for them, Inam against them.
I don’t think they can concor Ukraine, bit they have achieved the goal of securing the Russian part.
Was it the long range missile strikes in the Donbass?
“That and stopping NATO from charging right up to his border.”
Better look at a map. NATO was already at their border. Poor excuse.